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Caterpillar offers Wheel Tractor-Scrapers designed exclusively for your coal stockpiling and retrieval needs. The Caterpillar® 657 Coal Bowl Scrapers can construct and maintain your coal stockpiles, as well as haul loads to your inlet supply system to meet the burn requirements of the plant.
Tractor Engine
Cat C18
Scraper Engine
Cat C15
Flywheel Power – Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Product specifications for 657 Coal Bowl Coal Bowl Scrapers
Engine
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Tractor Engine
Cat C18
Scraper Engine
Cat C15
Tractor Engine
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Flywheel Power – Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Net Power
469 kW/637 hp
Gross Power (SAE J1995)
475 kW
Net Power (ISO 14396)
469 kW
Bore
145 mm
Stroke
183 mm
Displacement
18.1 l
Net Power (SAE J1349/ISO 9249)
436 kW
Scraper Engine
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Net Power
353 kW/447 hp
Gross Power (SAE J1995)
359 kW
Net Power (ISO 14396)
353 kW
Net Power (SAE J1349/ISO 9249)
333 kW
Bore
137.2 mm
Stroke
171.5 mm
Displacement
15.2 l
Scraper Bowl
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Scraper Capacity – Heaped
33.6 m³
Rated Load
47200 kg
Capacity – Struck
24.5 m³
Depth of Cut – Maximum
417 mm
Width – Cut – To Router Bits
3.8 m
Ground Clearance – Maximum
0.7 m
Hyd. Penetration Force – 657G
542 kN
Depth of Spread – Maximum
660 mm
Apron Opening
2337 mm
Apron Closure Force
176 kN
Transmission
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Top Speed – Loaded
56.1 km/h
1 Forward
5.7 km/h
2 Forward
10.5 km/h
3 Forward
12.5 km/h
4 Forward
17 km/h
5 Forward
22.8 km/h
6 Forward
30.9 km/h
7 Forward
41.4 km/h
8 Forward
56.1 km/h
Reverse
10.8 km/h
Hydraulics
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Bowl Cylinder Bore
180 mm
Bowl Cylinder Stroke
950 mm
Apron Cylinder Bore
180 mm
Apron Cylinder Stroke
759.5 mm
Steering Circuit (@ High Idle)
288 l/min
Cushion Hitch Circuit
74 l/min
Secondary Steering Circuit
55 l/hr
Relief Valve – Steering Circuit
13500 kPa
Relief Valve – Implement Circuit
13780 kPa
Compensator Settings – Cushion Hitch Circuit
20700 kPa
Steering
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Width – 180° Turn – Right
13.85 m
Width – 180° Turn – Left
14.5 m
Steering Angle – Right
90
Steering Angle – Left
85
Service Refill Capacities – Tractor
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Crankcase
38 l
Transmission
136 l
Differential
136 l
Final Drive – Each
29.5 l
Cooling System
88.6 l
Hydraulic Reservoir
150 l
Windshield Washer
5 l
Service Refill Capacities – Scraper
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Fuel Tank – 657G
1628 l
Crankcase
34 l
Transmission
121 l
Differential
168 l
Final Drive – Each
30 l
Cooling System
63.2 l
Dimensions
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Width – Overall Machine
4.36 m
Width – Tractor
3.75 m
Width – Rear Tire Center Lines
2.81 m
Width – Inside of Bowl
3.68 m
Width – Outside Bowl – Shipping Width
3.93 m
Height – Overall Shipping
4.66 m
Height – Top of Cab
3.92 m
Ground Clearance – Tractor
0.7 m
Front of Tractor to Front Axle
4.55 m
Axle to Vertical Hitch Pin
0.55 m
Height – Scraper Blade Maximum
0.66 m
Wheel Base
9.96 m
Length – Overall Machine
17.97 m
Rear Axle – Rear of Machine
2.46 m
Weights – Push-Pull
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Total Shipping
72804 kg
Tractor Shipping
42472 kg
Scraper Shipping
29061 kg
Total Operating – Empty
74500 kg
Front Axle
42566 kg
Rear Axle
30238 kg
Total Operating – Loaded
121700 kg
Front Axle – Loaded
60856 kg
Rear Axle – Loaded
59121 kg
Purpose-Built Coal Bowl
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Purpose-Built Coal Bowl
• Large capacity coal bowl scrapers are longer and higher than
standard open bowl scrapers.
• Purpose-built coal bowl dual engine scrapers deliver faster cycle
times with maximum payloads.
• High ground speed provides the ability to manage stockpiles.
• Machine is designed for loading, hauling, and compaction for
complete functionality.
• Work effectively in poor underfoot conditions and climb slippery
piles and loose coal with all-wheel drive (AWD).
• Coal bowl scrapers provide effective coal compaction, which
reduces the risk of spontaneous combustion in coal stockpiles by
eliminating the air spaces.
• Specialty coal bowl scrapers are optimized for maximum machine
productivity and efficiency.
Be More Productive
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Be More Productive
• Improve productivity by up to 6%.
• Move more material with Advanced Productivity Electronic Control
System (APECS), which allows the machine to better utilize engine
power and torque.
• Set the desired top speed with Ground Speed Control, and the
machine will find the gear that works best for the engine and the
transmission, providing a lower fuel burn.
• The Machine Speed Limit feature replaces Top Gear Selection.
• Auto-Stall assists in quickly bringing the transmission to an
operating temperature at start-up when working in colder climates.
Work in Comfort
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Work in Comfort
• Steer with less effort with the newly designed high-pressure
steering system.
• Reduce up to 14 individual operator commands per cycle with
Sequence Assist (optional attachment).
• Enjoy interior improvements and a more ergonomic work
environment with a 21% larger cab than the 657 G-Series cabs.
• Intuitive, ergonomic controls with multifunction display keep
operators focused on their work.
• Maintain desired cab temperature with automatic temperature
control.
Designed for Safety
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Designed for Safety
• Get in and out of the cab easier with the new powered access
ladder system (optional attachment).
• Enhance the operator’s awareness of site surroundings with the
optional Work Area Vision System (WAVS).
• Centralized service locations allow for easier and safer
maintenance.
• Seat belt indicator provides visual and audible alerts when the seat
belt is not in use.
Easy to Operate
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Easy to Operate
• Cat Advance Ride Management (ARM) seat suspension reduces end
stroke movement of the load cylinder for a smoother ride.
• Engine overspeed protection will automatically engage with no
operator input when the machine is in eighth gear. The machine
will assist in slowing the machine speed by canceling the throttle
command and engaging the engine compression brake.
Integrated Cat Technologies
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Integrated Cat Technologies
• Access information anytime, anywhere with Vision Link®– use it to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve safety and security on your
jobsite.
• Product Link™collects machine data that can be viewed online through web and mobile applications.
Execute Efficiency
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Execute Efficiency
• The Cat C18 tractor and C15 scraper engines meet U.S. EPA Tier 4 Final or EU Stage V emission standards, contributing to lower fuel consumption.
• Using draft-arm overflow guards diverts material away from the bowl, preventing material from getting caught between the draft arms and the bowl sides.
• The new tractor hydraulic demand fan helps lower fuel consumption.
657 Coal Bowl Standard Equipment
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NOTE
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Standard and optional equipment may vary. Consult your Cat dealer for details.
ELECTRICAL
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Alarm, backup
Alternator, 115 amp – tractor engine
Alternator, 65 amp – scraper engine
Batteries Tractor (4), 12V Maintenance Free, High Output
Batteries Scraper (4), 12V Maintenance Free, High Output
Electrical System, 24V
Lighting System – Tractor
Lighting System – Scraper
Starting Receptacle – tractor and scraper engines
OPERATOR ENVIRONMENT
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Air Conditioner (includes heater and defroster)
Automotive style fuse panel with fuse puller
Lunch box platform with holding strap
Coat Hook
Cup holder
Diagnostic Connection Port (12V)
Dome Courtesy Light
Engine speed lock
Fan defroster
Gauge Group
Horn
Implement Control Joystick
Rearview Mirrors
Radio Ready
2 radio openings, speakers, and 5-amp converter
ROPS Cab with Sound Suppression and Pressurization
Static Seatbelt, 2 piece
Scraper Engine Controls
Seat, Air Suspension, Cat Advanced Ride Management
Steering Wheel – tilt and telescoping
Storage Compartment
Transmission Hold
Windows – sliding side
Windshield – laminated glass
Windshield Wiper/Washer – front and rear
Wrist Rest/Grab Handle
POWER TRAIN
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Tractor
Scraper
OTHER STANDARD EQUIPMENT
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Tractor
Scraper
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